{"id":468930,"url":"https://alion.io/job/dfns-senior-infrastructure-engineer","title":"Senior Infrastructure Engineer","company":{"id":175593,"name":"Dfns","domain":"dfns.co","url":"https://alion.io/company/dfns","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Deel","truth_index":{"grade":"B","score":81,"open_postings":9,"ghost_share":0,"stale_share":0.778,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-27T05:46:45Z"}},"role":"DevOps","role_family":"DevOps","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_regions","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":["Paris, France"],"countries":["FR"],"hiring_countries":["DE","FR","GB","AT","BE","BG","HR","CZ","DK","FI","HU","IE","IT","NL","NO","PL","RO","ES","SE","CH","EE","GR","IS","LV","LI","LT","LU","MT","PT","SK","SI"],"hiring_countries_total":31,"salary":{"min":120000,"max":180000,"currency":"EUR","period":"year","gross":null,"usd_annual":201901},"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"Datadog","optional":false},{"name":"Docker","optional":false},{"name":"GCP","optional":false},{"name":"Jenkins","optional":false},{"name":"Kubernetes","optional":false},{"name":"Node JS","optional":false},{"name":"Terraform","optional":false},{"name":"Grafana","optional":true},{"name":"JavaScript","optional":true},{"name":"PKI","optional":true},{"name":"Prometheus","optional":true},{"name":"Python","optional":true},{"name":"Rust","optional":true},{"name":"Smart Contracts","optional":true},{"name":"SQL","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-07-14T16:19:04Z","employer_posted_date":"2026-08-13","last_verified_at":"2026-10-27T13:49:13Z","board_verified":true,"closed_at":null,"days_open":104,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":104},"description":"Join a team of engineers and cryptographers building the infrastructure behind the next generation of financial systems.\nWe’re hiring a Senior Infrastructure Engineer to design, operate, and scale the systems that power our platform. You’ll build and maintain the infrastructure that supports wallet services, transaction processing, and blockchain integrations. You’ll work at the intersection of distributed systems, security, and cloud infrastructure to ensure our platform remains reliable, secure, and performant. This role goes beyond operating infrastructure. You’ll help design resilient architectures, automate operations, and improve how we deploy, monitor, and secure our systems. You’ll work closely with engineering, product, and security teams to deliver infrastructure that scales with real-world financial workloads.\nResponsibilities\nDesign, build, and maintain cloud infrastructure with a focus on scalability and security.\n\nArchitect and operate containerized and orchestrated systems (Docker, Kubernetes).\n\nAutomate provisioning and deployments using Terraform, Jenkins, and CI/CD pipelines.\n\nImplement and maintain observability with Datadog across logs, metrics, and traces.\n\nOptimize performance and reliability of Node.js applications and backend services.\n\nConfigure and manage secure enclaves (AWS Nitro) to harden critical workflows.\n\nPartner with product and security to align infra decisions with roadmap and risk strategy.\n\nDocument systems, promote knowledge sharing, and support client discussions.\n\nRequirements\n8+ years of infrastructure, DevOps, or SRE experience in cloud-native systems.\n\nStrong expertise with AWS (GCP is a plus; IBM and Thales are a plus too).\n\nSkilled in Infrastructure-as-Code (Terraform) and CI/CD automations.\n\nDeep knowledge of Docker, Kubernetes, and containerized microservices.\n\nExperience administering and tuning SQL and NoSQL databases.\n\nFamiliar with observability platforms (Datadog, ELK, Prometheus/Grafana).\n\nSolid understanding of infrastructure security and PKI fundamentals.\n\nProficiency in scripting and systems programming (Python, Rust, TypeScript).\n\nClear communication skills and ability to operate reasonably under pressure.\n\nIdeally, experience with blockchain networks, nodes, and smart contracts.\n\nRecruitment process\nIntro call with Co-CEO (30 min)\n\nPersonality and cognitive tests (45 min)\n\nCoding test in a language of your choice\n\nFocus interviews with the hiring panel (180 min)\nCode review\n\nArchitecture review\n\nSecurity fundamentals\n\nCulture check fit\n\nFinal interview with CTO (30 min)\n\nReference calls and background checks\n\nTerms\nTitle: Senior Infrastructure Engineer.\n\nSalary: €120,000-180,000 per year (full-time).\n\nEquity: 100-200 stock options vested over 4 years.\n\nBenefits: Healthcare and travel expenses.\n\nLocation: Europe (remote-first, office optional).\n\nEquipment: MacBook Pro + essentials.","description_format":"text","description_chars":2891,"description_truncated":false,"requirements":{"experience_years_min":8,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Apple Macbook","Equity","Stock options"],"hiring_locations":[{"name":"Germany","iso":"DE","kind":"region"},{"name":"France","iso":"FR","kind":"region"},{"name":"United Kingdom","iso":"GB","kind":"region"},{"name":"Austria","iso":"AT","kind":"region"},{"name":"Belgium","iso":"BE","kind":"region"},{"name":"Bulgaria","iso":"BG","kind":"region"},{"name":"Croatia","iso":"HR","kind":"region"},{"name":"Czech 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